Internal-combustion engine.



H. BOYCE. lNTl IRNAL COMBUSTION ENGINE. APPLICATION FILED JUNE 10, m5.

1,1775758. Patented A151. 4, 1916.

HARRY BOYCE, OF DETROIT, MICHIGAN.

INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

Patented Apr. 4, 1916.

Application filed June 10, 1915. Serial No. 33,422.

To all whom it may concern: Be it known that I, HARRY Boron, a-citizen of the United States, residing at Detroit,

in the county of Wayne and State ofMichigan, have invented an Internal-Combustion Engine, of which the following is a specification.

This invention relates to a method of opening and closing the ports in a four stroke gas engine, and more particularly to a novel valve mechanism by which the method may be carried into effect.

The primary object of my invention is to reorganize and improve the valve mechanisms of internal combustion engines by providing novel rotary shutter valves disposed as a train of gears to be. revolved in synchronism and in such timed relation that the intake and exhaust ports of the cylinder are opened and closed in accordance with the order of firing the cylinders.

Another object of this invention is to fur nish a multi-cylinder engine with an integral manifold having intake and exhaust chambers, a lubricant chamber, and vertically disposed rotary shutter valves in the manifold,

extending into the lubricant chamber and having ports adapted to open the intake and exhaust ports of the cylinders of the engine.

A further object of my invention is toprovide a valve mechanism for explosive engines, wherein the parts are constructed with a view of reducing the cost of manufacture and at the same time retain those features by which safety, durability, simplicity and ease of assembling are secured, and with such ends in view, my invention resides in the novel construction, combination and arrangement of parts to be hereinafter specifically described and then claimed.

Reference will now be had to the drawing, wherein-- Figure 1 is a side elevation of a portion of a multi-cylinder engine, showing the manifold and in dotted lines the shutter valves within the manifold, and Fig. 2 is a cross sectional view of the same.

In the drawing, A, B, C and D generally denote the cylinders "of a multi-cylinder engine, and these cylinders are water jacketed, as at l and provided with an integral manifold 2. The. manifold 2 has an intake port 3 for the cylinders A and B and an intake port 4 for the cylinders G and D. The manifold also has exhaust ports 5, 6, 7 and 8 for the cylinders A, B, C and D respectively.

In the manifold is a longitudinal ported enlargement 9 confronting the cylinders and providing a slot lO'which is in communication with the lower portion of the manifold 2. The cylinders A, B, C and D have ports 11, 12, 13 and 14 in-communication with the slot 10 and within said slots are rotary shutter valves 15, 16, 17 and 18. The rotary shutter valves are keyed or otherwise mounted upon pins 19 journaled in the enlargement 9 of themanifold and the pins 19 are retained within said enlargement by nuts 20. The rotary shutter valves are circular in elevation and have the peripheries thereof provided with gear teeth 21 and said valves are positioned whereby the gear teeth of one valve mesh with the gear teeth of an adj oining valve, consequently when a rotary movement is imparted to the valve 15, in a clockwise direction, the rotary valve 16 is rotated counter clockwise; the rotary valve 17 clockwise, and the rotary valve 18 counter-clockwise, as indicated by arrows on Fig. 1 of the drawing.

To impart movement to the train of meshing valves, the pin 19 of the rotary valve 15 has a beveled gear wheel 22 meshing with a beveled gear wheel 23 mounted upon the upper end of a driven shaft 24 extending into an offset portion 25of the manifold.

The elements 22, 23 and 24 simply constitute means ofa conventional form whereby the rotary valves 15 to 18 inclusive may be rotated, and to insure non-frictional move ment of said valves, the lower portion of the manifold 2 contains a lubricant 26 into whichext'end the lower edges of the rotary valve. The lubricant is carried by each valve into the slot 10 and tends to seal any space that may exist between said valve, the face of the enlargement 9 and the outer ends of the ports 11 to 14 inclusive.

The rotary valves 15 to 18 inclusive are provided with ports 27 to 30 inclusive adapted to register with the cylinder ports 11 to is obviated and a more positive control of ceptible to such variations and mmlifications as fall within the scope of the appended claim.

What I claim is The combination of an engine having cylinders, each provided with a single port, a manifold common to all of said cylinders at one side of said cylinders and having intake ports forsaid cylinders and adapted to have the bottom thereof contain a lubricant, said manifold having the outer wall thereof provided with an enlargement extending inwalls, the enlargement of said manifold having an exhaust port therein for each cylinder, pins journaled in the enlargement of said ,manifold and extending transversely of the space between said manifold enlargement and the ported cylinder walls, a train of meshing rotary shutter valves mounted on said pins between said cylinders and the enlargement of said manifold and adapted to have the lower edges thereof immersed in the lubricant of said manifold, and means at an-end of said manifold adapted to impart movement to said train of shutter valves whereby some of said valves are r0- tated clockwise and other of said valve-s counterclockwise to control the ports of cylinders of said engine.

HARRY BOYCE.

lVitnesses:

LOUIS A. Tnsnrr'rs, ROSE H. TIBBITTS.

,wardly in proximity to the ported cylinder 

